评估帕金森病患者的基本频率变化:跟踪误差的影响。

IF 2.2 2区 医学 Q1 AUDIOLOGY & SPEECH-LANGUAGE PATHOLOGY
Alena Portnova, Annalise Fletcher, Alan Wisler, Stephanie A Borrie
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引用次数: 0

摘要

目的:基频(F0)的自动测量通常包含跟踪误差,可能难以准确纠正。本研究评估了这些错误在多大程度上改变了患有帕金森病(PD)和神经正常的成年人的F0总结统计数据。此外,我们还包括一个案例研究,研究跟踪错误的消除如何影响我们预测与构音障碍和PD相关的感知结果测量,言语表达能力的能力。采用几种不同的统计方法来表征F0可变性,以证明跟踪误差的影响。方法:记录8名PD患者和8名神经正常患者朗读《毛毛虫》短文。在Praat中提取F0测量值,并手动识别跟踪误差。统计分析跟踪误差对F0均值和标准差的影响。20名听众对80句话的表达能力进行了评分。使用不同的统计方法来表征F0变异性(有或没有跟踪错误),研究了听众评分与F0变异性之间的关系。结果:跟踪误差对F0标准差的测量有显著影响,但对F0平均值没有显著影响。当从数据分析中去除跟踪误差时,F0可变性测量值与表达性之间的关系得到加强。结论:跟踪误差显著改变了PD患者和神经正常成人的F0标准差值。案例研究证据还表明,跟踪错误可以降低F0可变性与感知结果测量(如言语表达能力)之间的关系强度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Assessing Fundamental Frequency Variation in Speakers With Parkinson's Disease: Effects of Tracking Errors.

Purpose: Automatic measurements of fundamental frequency (F0) typically contain tracking errors that can be challenging to accurately correct. This study assessed to what degree these errors change F0 summary statistics in speakers with Parkinson's disease (PD) and neurotypical adults. In addition, we include a case study examining how the removal of tracking errors influenced our ability to predict a perceptual outcome measure, speech expressiveness, associated with dysarthria and PD. Several different statistical approaches for characterizing F0 variability were used to demonstrate the influence of tracking errors.

Method: Eight speakers with PD and eight neurotypical speakers were recorded reading The Caterpillar passage. F0 measurements were extracted in Praat and tracking errors were manually identified. The effect of tracking errors on F0 mean and standard deviation was statistically analyzed. Twenty listeners rated speech expressiveness across 80 sentences. The relationship between listener ratings and F0 variability was examined using different statistical approaches for characterizing F0 variability (with and without tracking errors).

Results: Measurements of F0 standard deviation, but not F0 mean, were significantly affected by tracking errors. Relationships between measurements of F0 variability and expressiveness were strengthened when tracking errors were removed from data analysis.

Conclusions: Tracking errors significantly alter F0 standard deviation values for both speakers with PD and neurotypical adults. Case study evidence also suggests that tracking errors can reduce the strength of relationships between F0 variability and perceptual outcome measures, such as speech expressiveness.

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来源期刊
Journal of Speech Language and Hearing Research
Journal of Speech Language and Hearing Research AUDIOLOGY & SPEECH-LANGUAGE PATHOLOGY-REHABILITATION
CiteScore
4.10
自引率
19.20%
发文量
538
审稿时长
4-8 weeks
期刊介绍: Mission: JSLHR publishes peer-reviewed research and other scholarly articles on the normal and disordered processes in speech, language, hearing, and related areas such as cognition, oral-motor function, and swallowing. The journal is an international outlet for both basic research on communication processes and clinical research pertaining to screening, diagnosis, and management of communication disorders as well as the etiologies and characteristics of these disorders. JSLHR seeks to advance evidence-based practice by disseminating the results of new studies as well as providing a forum for critical reviews and meta-analyses of previously published work. Scope: The broad field of communication sciences and disorders, including speech production and perception; anatomy and physiology of speech and voice; genetics, biomechanics, and other basic sciences pertaining to human communication; mastication and swallowing; speech disorders; voice disorders; development of speech, language, or hearing in children; normal language processes; language disorders; disorders of hearing and balance; psychoacoustics; and anatomy and physiology of hearing.
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